Partnership



11112111113111) FEB. 2, 1904.

' L. B. SMYSBR.

. anvmsme GEAR. v APPLICATION FILED DBO. 24, 1898., RENEWED JULY 15, 1902. H0 MODEL. 3 SHEETS-SHEET 1.

WITNESSES:

- l I BY f THE uonms r-zrzas 0a.. PHOTQUTND" \vAs'mNuToN, n. a

No. 751,211. PATBNTED FEB. 2, 1904.

L. B. SMYSER. REVERSING GEAR.

APPLIOATION FILED DBO. 24, 1898. RENEWED JULY 15, 1902.

NO MODEL. 3 SHEETS-SHEET 2.

QL 4 f1 75,

WITNESSES: T I INVENTOR" ATTORNEYS v gears.

UNITED ST TES Patented February 2, 1904.

PATENT OFFICE.

LOUIS B. SMYSER, OF ELIZABETH, NEW JERSEY, ASSIGNOR, BY NIESNE ASSIGNMENTS, TO 'CANDA BROTHERS, OF NEW YORK, N. Y., A CO- PARTNERSHIP.

REVERSlN G-GEAR.

SPECIFICATION forming part of Letters Patent No. 751,211, dated February 2, 1904.

Application filed December 247, 1898. Renewed July 15,1902. Serial No. 115,743. (No model.) I

To all whom it may concern;;

Be it known that I, LOUIS B. .SMYsER, acitizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Reversing- Gears; and I do hereby declare the following to be a full, clear, I

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to reversing-gears such as are employed for reversing the direction of motion imparted to a shaft or other driven object by a motor, such as a gas or oilengine, which is not itself readily reversible.

My invention consists in the novel means employed for reversing the direction of H10- tion imparted by a motor.

The object of my invention is to improve and simplify the construction of reversing- This object is attained in the invention herein described and illustrated in the drawings which accompany and form a part of this specification, in which the same reference numerals indicate the same or correponding parts, and in which Figure 1 is an elevation of an oil or gas engine of the marine type with my reversinggearapplied thereto. Fig. 2 is a central vertical section of the reversing-gear. Fig. 3 is a detail elevation of one of the friction clutches; and Fig. 4 is a transverse section of the reversing-gear, showing in elevation the friction-brake.

In the drawings, 1 is the motor, in this case a gas or oil engine of the marine type, 2 the main or crank shaft thereof,,and 3 the driven shaft.

tis the reversing-gear. The reversing-gear consists, essentially, of a casing 5, adapted to be placed in driving connection with the driving and driven shafts by two clutches mounted upon said shafts and having within it intermeshing bevel gear-wheels mounted upon the driving and driven shafts and upon a journalpin carried by the casing, and a friction-brake adapted to retard the revolution of the casing and to hold it stationary when desired. The construction of the reversing-gear is shown most clearly in Fig. 2. The two friction-bands of the clutches by which the casing 5 may be placed in driving connection with the driving and driven shafts, respectively, are preferably mounted within flanged overhanging ends of the casing. 6 6 are two supporting-Wheels of these shaft friction-clutches mounted within the overhanging flanges of the casing 5 and keyed, respectively, to the hubs of bevel gearwheels 7 and 8, themselves keyed to the shafts 2 and 8, respectively. The casing5 also has bearings upon the hubs of these beveled wheels 7 and 8.

- 9 9 are split friction-bands pivoted to the supporting-wheels 6 by means of screws 10 10.

11 11 are two cams pivoted to the supporting-wheels 6 by means of screws 12 12. These cams are located between the ends of the friction-bands 9 9 and are adapted when rotated to press said bands outwardly against the flanges.of the casing 5. To these cams are connected levers 13 18, provided with adjusting-screws 14 14, Fig.3, the ends of which normally bear against sliding cones 15 15, mounted upon the shafts 2 and 3 and adapted to be moved toward and from the center of the casing 5 by means of levers 16 16.

Between the ends of shafts 7 and 8 is a short Surrounding the casing 5 is a split frictionband 20, secured at 21 to some stationary object. jA lever 22, Fig. 4, has a heel 23, carrying an adjusting-screw 2 1, bearing against one end of this band, and said lever also carries a crank-arm 25, connected by a link with the other end of the band. The construction is such that when the lever 22 is moved upward the ends of the band 20 are drawn together so that they press against the casing 5.

The band 20, with its operating devices, constiv tutes a friction-brake.

The levers 16 16,which operate the frictionclutches, are connected by links 27 27 with a pivoted double lever 28, which may be rocked by a suitable operating-lever 29. The same lever 28 has connected with it an arm 30, connccted by a link 31 with the operating-lever 22 of the friction-brake. The arrangement of the parts is such that when the operating-lever 29 is moved so as to move the cones 15 toward each other, and thus press the frictionband 9 against the flanges of the casing 5, the friction-brake is released, and,vice versa,when said operating-lever 29 is moved so as to move the cones 15 away from each other the friction-brake is applied.

The operation of the reversing-gear is as follows: When the friction-clutches are thrown into action, the casing 5 serves as a connecting member between shafts 2 and 3, so that if the shaft 2 revolves the shaft 3 also revolves. If lever 29 occupies an intermediate position, all of the friction-clutches are out of action, and in that case the engine may run free. When such is the case, however, the action of the bevel-gear 7 upon bevel-gears 18 and 19, carried by the casing 5, causes said casing to revolve at half-speed. If the operating-lever 29 be moved to the other extreme position, so as to cause the frictionband 20 to grasp the casing 5 and hold the same stationary, then gears 18 and 19 act simply as intermediate gears, communicating motion from gear 7 to gear 8, and cause shaft 3 to revolve in a direction reverse to that in which shaft 2 revolves. The casing 5 is formed in two parts, bolted together, so as to permit the insertion of the bevel-gears. This casing is sufficiently tight to permit the gears to run in oil, so that they may run smoothly and noiselessly and without excessive wear.

Having thus completely described my invention, whatI claim, and desire to secure by Letters Patent, is-- 1. In a reversing-gear, the combination, with driving and driven members, a connecting-casing surrounding the ends of said driving and drivenmembers and revolubly mounted, and having outwardly-extending flanges, of supporting members within said flanges and secured to said driving and driven members, friction-bands secured to said supporting members and adapted to be pressed outwardly against said flanges, means for so pressing said friction-bands against said flanges, reversing-gearing located within the'casing, and means for setting said reversing-gearing in operation at will, substantially as described.

2. In a reversing-gear, the combination, with driving and driven members, a connecting-casing surrounding the ends of said driving and driven members and revolubly mounted, and having outwardly-extending flanges, of supporting members within said flanges and secured to said driving and'driven members, friction-bands secured to said supporting members and adapted to be pressed outwardly against said flanges, cams located between the ends of said friction-bands, and adapted to press said bands outward, means for operating said cams, reversing-gearing located Within the casing, and means for setting said reversing-gearing in operation at will, substantially as described.

3. In a reversing-gear, the combination with drivingand driven members, a third member or carrier embracing the adjacent ends thereof and provided at one end with an outwardly-extending flange, and reversinggearing connecting said driving and driven members and carried thereby and by said third member or carrier, of a supporting member secured to one of said driving and driven members, a friction-band carried by said supporting member and located within said flange and adapted to be pressed outwardly against the same, means for so pressing said friction-band against said flange, and a friction-brake acting upon the outside of said casing.

4. In a reversing-gear, the combination with driving and driven members, a third member or carrier embracing the adjacent ends thereof and provided at one end with an outwardly-extending flange, and reversinggearing connecting said driving and driven members and carried thereby and by said third member or carrier, of a supporting member secured to one of said driving and driven members, a friction-band carried by said supporting member and located within said flange and adapted to be pressed outwardly against the same, means for so pressing said friction-band against said flange, a friction-brake acting upon the outside of said casing, and a single operating device adapted to operate either the friction-brake or the means for pressing the friction-band against the flange of the carrier at will.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. LOUIS B. SMYSER. Witnesses:

J. C. SPRINes'rEEN, H. M. MARBLE. 

